Bowser

Bowser  or King Koopa, is a fictional character, the primary antagonist in Nintendo’s Mario franchise, and the archenemy of Mario. In Japan, the character bears the title of Daimaō  Bowser is the leader of the turtle-like Koopa race. Despite the fact that Bowser has teamed up with Mario in a few games, his ultimate goals are to kidnap Princess Peach and to defeat Mario and Luigi to conquer the Mushroom Kingdom. Bowser’s defining traits are his monstrous appearance with dragon-like elements, full-throated roar, fire-breathing abilities, cruel personality, bestial reptilian voice, never-ending conflict with Mario, and unrequited crush for Peach.